Home / 12,208.40-18,268.80-10,570.56

Finding the Fourth Proportional to 12,208.40, 18,268.80 and 10,570.56

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Solution

The fourth proportional to 12,208.40, 18,268.80 and 10,570.56 is: 15,817.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.40 : 18,268.80 = 10,570.56 : x
  2. Step 2: Convert to fraction form
    12,208.40/18,268.80 = 10,570.56/x
  3. Step 3: Cross multiply
    12,208.40x = 18,268.80 × 10,570.56
  4. Step 4: Simplify right side
    12,208.40x = 193,111,446.53
  5. Step 5: Solve for x
    x = 193,111,446.53/12,208.40
  6. Step 6: Final answer
    x = 15,817.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.